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Supplement-Introducing Mechanism for Printing- Machines. No. 225,746.. Patented Mar. 23,1880.

N. PETERS. PNOTWUYHOGRAPHER. WASWNGTON. D C.

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L.. 0.. OROWELL. Supplement-Introducing Mechanism for Printing- Machines... No. 225,746. Patented Mar. 23, 1880.

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NJETERS. PHOTGLITHOGRAPHER, WASHINGTON, D C.

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'6 Sheets-SheeL-B L. C. GROWELL. Supplement-Introducing Mechanism for Printing- Maohines. No. 225,746.

Patented Mar. 23, I880.

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N PETERSA PHOTOLITHOGRAPHER WSWNQTON. D C

UNITED TATES PATENT Brien.

LUTHER c. OROWELL, or BOSTON, MASSACHUSETTS, ASSIGNOR TO a. non & 00., on NEW YORK, n. Y.

SUPPLEMENT-INTRODUCING MECHANISM FOR PRINTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 225,746, dated March 23, 1880.

Application filed March 5, 1879.

To all whom it may concern:

Be it known that l, LUTHER G. OROWELL, of the city of Boston, county of Suffolk, and State of Massachusetts, have invented certain new and useful Improvements in Printing-Machines; and I do hereby declare that the following specification is such a full, clear, and exact description thereof as will enable others skilled in the art to construct and use the same, reference being had to the accompanying drawings.

This invention relates particularly to that class of machines known as web-perfecting machines, whereby a web is printed upon both its surfaces and cut into suitable sheets; but the same may be applied to a machine that prints sheets regularly fed to it.

The invention consists, principally, in combinin g with the printing mechanisms that produce the main printed sheet and the mechchanism that delivers the same, a mechanism for associating a St111)1)l6Il16I1t-Sll66t with said main sheet; also, in combining therewith a folding mechanism, whereby said supplement and main sheets may be doubled one within the other and delivered as a single folded product; also, in an improved webseverin g mechanism. Other features of invention are ineluded herein, as will be more particularly hereinafter pointed out and claimed.

In order to a perfect understanding of the nature and scope of this invention the principal machine herein illustrated as comprehen ding my invention will first be described,and thereafter various constructions of machines, including said invention, will be explained.

In said drawings, Figure 1 represents the principal machine in side elevation, Fig. 2 being a plan or top view with the cylinder 50 removed; Fig. 3, a longitudinal sectional elevation, and Fig. 4. an enlarged sectional elevation, of sufiicient parts to Show one mode of.introducing the supplement web or sheet. Fig. 5 illustrates so much of another machine as is necessary to understand the same, which contains a modified arrangement of my invention. Fig.6 illustrates in like manner a third machine, in which the supplement is led to a delivering folding mechanism. Fig. 7

illustrates the delivering mechanism of said machine as performing the folding operation. Figs. 8 and 9 represent, in detail, one modified form of the supplement \vebindicating mechanism. Figs. 10 and 11 illustrate a further modification of this device; and Figs. 12 and 5 5 13 illustrate the cutting devices.

The said principal machine is illustrated generally in Figs. 1 to 3 of the drawings. It comprises three mechanisms-viz., first, the printing mechanism for perfecting the main web or sheet; second, a supplement-introducing mechanism; and, third, a delivering inechanism, whereby the main sheet and the supplementsheet are associated and delivered together as a single product.

The printing mechanism consists of two type and two impression cylinders arranged in such a manner as to print the opposite sides of a web of paper while the same is passing once through them, as is common and well understood in the art of printing.

The last type-cylinder, l0, and its companion impression-cylinder 50 of such a priiitingmachine are alone represented herein, the latter being made, as is usual, greater in diameter than the formerin this case being twice as large-and the main web of paper 9, supposed to be received from the first type and impression cylinders, passes between these cylinders 10 50.

The type-cylinder 10 and impression-cylinder 50 are geared togetherby toothed wheels 61 62, and will be driven from the other type and impression cylinders, which will be similarly geared, so that the type and impression cylinders will all run in unison.

The supplement-introducing mechanism consists, mainly, of feeding-cylinders 30 40, which govern the feeding in of the supplementweb 11, which has been previously printed and wound up in a roll, and this roll is mounted by its spindle 55 in suitable bearings in an appropriate portion ofthe framework, or in a separate stand adjacent to the machine, which spindle 55 is provided with a suitable friction device, to be hereinafter described. These feeding-cylinders are of a size or are moved at a surface-speed appropriate to the size of the supplement designed to be associated with the main sheet. In this in- I00 stance, the supplement-sheet is equal to onehalf the length of the main sheet, and said feeding-cylinders are made equal in their circumferential extent to the length of said supplement-sheet-that is, their diameter is onehalf that of the type-cylinders, as 10, that produce the main sheet. They are also geared to run at one-half the surfacespeed of the said type-cylinder 10, as follows: 'Bein g geared together by toothed wheels 63 64 so as to run in unison, they are driven by a toothed wheel,

65 fixed upon the shaft of the cylinder 30,

whiclrwheel is of the same diameter as the wheel 61 upon the shaft of the said type-cylinder "10, and meshes with the wheel 62 upon the shaft of the impression-cylinder 50. Said feeding-cylinders 30 40, being one-half the diameter of their actuating-wheel 65, consequently run with one-half of the surface-speed of the mechanisms which carry forward the main web, and therefore feed or advance the supplement-web with one-half the speed at which the main web travels, thus carrying forward a half-sheet in the time occupied by the onward movement of a whole or .main sheet. After passing between these feedingcylinders 30 40, the supplementwveb is conveyed to the delivering mechanism by conducting-tapes 31 41, which are stretched as follows: The tapes 31 run from pulleys or a grooved roller, 21, under the cylinder 30, around the cylinder 40, and return to said pulleys or roller 21. The tapes 41 run over a roller, 22, thence in contact with the lower surface of the cylinder 40, thence around pulleys or a grooved roller, 23, and return to the pulley 22.

The roller22 is provided with a pinion, 48, that meshes with a toothed wheel, 49, fast on the shaft of the cylinder 40, which arrangement of gearing moves the tapes 41 slightly faster than the tapes 31, which insures the ,web being smoothly carried forward. These tapes 31 and 41 have a nipping contact where they pass together over the surface of the cylinder 40 and are spread slightly apart where they run over the pulleys or rollers 21 23, and this nippingpoint of the tapes 31 41 is at a greater distance from the point of contact of the cylinders 50 than the length of a supplement-sheet. Thus said tapes, while operating to advance the supplement-web at the same speed at which the cylinders 30 40 feed it forward, permit a supplement-sheet, constituted by the forward end ofsaid web,to be advanced from between them when said sheet shall be within the control of the delivering mechanism, as will more fully hereinafter appear. Sets of guards 3 4, prop erly held by the frame-work, extend the passage for the supplement-web a suitable distanee toward the point of contact of the cylinders 50 60.

An auxiliary indicating-cylinder, 20, may

constitutea part of this supplement mechanism, which incheating-cylinder is of the same size as the ieedingcylinders 30 40, and, like them, receives its motion through a toothed proper time to seize or wheel, 66, of twice its size and equal to that of the wheel 61 of the type-cylinder 10, from which Wheel it is driven by an intermediate, 67.

The delivering mechanism consists of a pair of cylinders, 60 70, which, in this instance, are provided with devices for holding the leading ends of the main and supplement sheets and mechanism for folding the latter within the former and delivering the two sheets as a single folded product. These cylinders are geared together to run in unison by toothed wheels 68 69, the former of which meshes with the toothed wheel 62 of the impression-eylinder 50, so that said cylinders 50, 60, and revolve with like surface-speet'ls.

The cylinder 60 is furnished with serrated cutting-plates 12 13, which co-operate in severin g the main web with the cutting-knives 14 15, carried by the cylinder 70, with pins 1 2 pro jectingjust behind the edge of the plates 12 13, for impaling the leading ends ofthe sheets and holding them within the control of the cylinder 60, and with folding or creasingblades 16 17, which co-operate, in the folding operation, with pairs of nippi n g-jaws 18 19 and 25 26, carried by the cylinder 70.

The plates 12 13 and knives 14 15 are fixed, and simply pass by each other as the cylinders 60 70 revolve. The blades 16 17 are also fixed, and the jaws 18 25 are stationary; but thejaws 19 26 are oscillated by means of rock-arms 27 28 and a fixed cam, 29, in nip the bight or fold of the sheet doubled between them by the blades 16 17, all of which is particularly set forth in United *'States Patent No. 143,674, granted October 14, 1873.

Though the cylinders 30 40 may generally perform only the function of properly feeding the supplement-web forward, the cutting of said web being then otherwise performed, as will be hereinafter explained, yet, for compactness and simplicity of construction, as well as advantageous operation, said cylinders may also constitute cutting-cylinders for severing said supplement-web, as is herein shown. Said cutting-cylinders thus constituted comprisean improved webcuttin g mechanism, as will now be explained.

Each of the cylinders 30 40 is supplied with a projecting cutting-plate, as 5 6, having teeth out across their projecting edges, which teeth are so shaped or cut and placed that as said cylinders revolve the teeth of the plate 5 shall pass into the spaces between the teeth of the plate 6, and vice versa; and the said plates are so adjusted that their teeth will meet with and pass each other so closely that they will cut or break the web being fed forward between the eylinders, as may be desired. This operation will be best understood by referring to the enlarged views, Figs. 12 and 13.

So many of the teeth of these cutting-plates are removed as is necessary to accommodate the tapes 31 41, when tapes pass over the cylinders 30 40, so that the web is but partially severed or broken transversely.

In operating this machine the supplement mechanism is temporarily thrown out of action by sliding its wheels 65 66 out of gear, said wheels being splined upon their shafts and provided with holding screws or other locking device for this purpose. The main web is then advanced by the rotation of the cylinders 10 50 until its head or leading end is impaled upon the pins, as 1, in the periphery of the cylinder 60, and its central margin is about to be pressed by the folding-blade, as 16, against an elastic bridge upon the cylinder 50, formed by the blanket 56, which bridge may be made yielding to any required degree by providing said cylinder with recesses, as 7 and 8. The feeding-cylinders are then independently revolved until the head or leading end of the supplement-web is so far advanced thatit may be introduced over the blade 16 and underneath the main web, the end of the supplement-web being thus appropriately laid under the central margin of the main sheet. The wheel 65 is then put into gear with the wheel 62, whereupon the two webs will be manipulated as follows:

The two webs will together be drawn onward with a like surface movement, the speed of which will be that constantly maintained by the main web 5 but before the supplement. web is nipped between the cylinders by means of the blade 16, its line of partial severance, cut by the blades 5 6, will have passed beyond the nip1 )ing-point of the tapes 31 41, as hereinbefore explained, so that the higher speed its leading end thus receives from the said cylinders will cause said leading end to be completely separated 011 the line of partial severance, and the detached portion, constituting a sup dement-sheet, to be carried at the same speed as and with the main sheet between the delivering-cylinders 60 70, where the two will be folded as a single product, the supplement-sheet lying between the folded parts of the main sheet. Meanwhile the supplementweb will be advanced at one-half the speed of the main web, and the leading end of the former will be carried onward, so that it will enter the nip of the cylinders 50 60 exactly at the time the central margin of the succeeding main sheet reaches that point, and the supplement-web will be thereupon again advanced at high speed, and its forward part again detached to form a sup1i)lement-sheet, which will be carried onward and folded into the main sheet, as before described.

The cylinder 50 may be constructed without a recess, as 7 or 8. In that case the foldingblade, as 16, will have a movement whereby its edge will recede and protrude in passing the cylinder 50, and will follow and press upon the periphery thereof with sufficient force to nip and carry forward the supplement-sheet, this blade thus receding to pass the cylinder 50, and being properly protruded to perform its part in the folding operation.

The cylinder 60 may have a continuous surface, so that the end of the supplement-web may be introduced and nipped between it and the cylinder 50 at any point of the main sheet, whereby the leading end of the supplement sheet may occupy any desired position with respect to that of the main sheet. In this arran gement the fold in g-blade will be constructed to reeede out of contact with the cylinder 50 when passing it, and protrude at the proper time to perform the folding operation.

The supplement-web may also be introduced as follows: The supplement apparatus being out of gear with the printing apparatus, the latter is so far revolved as to bring the end of the main web nearly up to the nip of the cylinders 50 60, and the holding-pins, as 1, of the latter into a corresponding position. The supplement-web is then advanced until its leading end, together with the leading end of the main web, maybe impaled on the said pins 1, whereupon the two webs ,will be advanced and delivered folded together.

It is obvious that to properly divide the printed supplementweb into sheets it must be cut through the blank spaces or margins; but it is apparent that the distance from margin to margin may be varied by the web be ing rolled out or stretched during printing, or the dampness may dry out and the web shrink either during or after printing, or other causes may affect it. Now, if the feeding and cutting cylinders 30 to are a trifle too small they will constantly feed the web forward too short a distance, and the point of cutting will soon vary from the margin into the printed matter; but if the feeding-cylinders are a trifle too large they will draw the web forward a trifle too far; but this may be corrected by applying a certain amount of pressure to the shaft 55 of the supplement-web roll to make it turn hard, so that as the web is drawn forward the strain on it will cause it to stretch until the distance from margin to margin will exactly agree with the circumference of the feeding and cutting cylinders, and the web will be cut through the margins.

To give the pressure on the shaft 55, a clam pebar. as 57, is provided, and the amount of pressure is varied by the regulating-screw 58, and it is the function of the cylinder 20 to indicate whether more or less pressure is required. This cylinder, which runs, turn for turn, with the feeding cylinders 30 4.0, is therefore provided with an indicating device, showing where the margin between the printed parts or points of cutting of the supplement web should lie in passing over said cylinder. This indicator may consist of a longitudinal line, 32, delineated upon the surface of said cylinder, or be simply a pointer, 33, fixed upon one end of the shaft of the cylinder 20 by means of a collar, 98, capable of being fixed in any adjustment of it by a set screw; and when the supplement-web has been properly introduced and the wheel of the feedingcylinders put into gear with the wheel 62 the said cylinder 20 is so far revolved thatits line 32 (or its pointer 33 set properly) shall coin cide with the position of the said margin or cutting-point then passing, or about to pass, over said cylinder, whereupon its wheel 66 is put into gear with the wheel 67. Now, at any time during the running of the machine, the operator can, upon examining the web as it passes over this cylinder20, determine whether it is runnin g truly and correctly into the machine, and if it is running too fast more pressure must be applied; if too slow, its retarding friction must be lessened.

This regulating device might, of course, be placed upon the cylinder 30, when the cylinder would become a simple leading-roller; but, in consequence of the position of the cylinder 30, it may be more convenient to have said indicating device upon the cylinder 20.

Another arrangement of the supplement mechanism is shown in Fig. 5. In the ma chine as there arranged the supplement-web 11 is led between feeding-cylinders 40, as before, and is thence conducted to a fasterrunning delivering mechanism, to which the main web 9 is directly carried. This delivering mechanism consists of delivering-cylinders 34 35, that are geared together by toothed wheels 42 43, driven at a conveniently high spcedthat is, twice that of the supplementfeeding cylinders 30 40 if the supplement is to be a half-sheet and four times greater if it is to be a quarter-sheet. These cylinders 34 35 are provided with endless tapes 36 37, that carry the sheets to a suitable piling or folding apparatus, such as the well-known gathering-cylinder, or any of the common folding apparatus.

In this arrangement of the mechanisms it may be desirable to run the cylinders 34 35 at a higher speed than the printing mechanism runs, in order to separate the main sheets from the main web, and thus provide a distance between the succeeding main sheets sufficient to provide for their subsequent manipulation, while undergoing which the said succeeding main sheets must not interfere with one another.

The supplement-web is directed from the cylinders 30 to the delivering apparatus, as

the cylinders 34 35, by conducting-tapes 31 41, as before; but in this instance the tapes 31 run from a roller or pulleys, 38, to a roller or pulleys, 21, while the tapes 41 are stretched from a roller or pulleys, 39, geared to the toothed wheel 86, carried by the cylinder 40 over pulleys turning freely on the shaft of the cylinder 35, which is made in sections to so accommodate them. Said tapes are run in unison by means of wheels 87 88 gearing their rollers 37 38 together, which roller 39 derives motion by a gear-wheel from the wheel 86.

The main web 9, severed or partially severed on the lines of its division into sheets, is conducted by suitable tapes 83 84, the upper set of which pass over pulleys moving freely on the shaft of the cylinder 34 in the same manner as do those on the cylinder 35, While the lower set of said tapes return over pulleys 24. This main web is led in above the curved conductors 3, that extend between the pulleys 21 and protrude toward the meeting surfaces of the cylinders 34 35, and thence passes between the cylinders 34 35, which nip and tear it apart, the main sheet thus formed by these cylinders being advanced at their high speed, and the supplement-web is led up between the tapes 31 41, under the conductors 3,-and has its leading edge placed evenly with or in any desired relation to the leading edge of the main sheet. As the main sheet and the end of the supplement web or sheet are nipped between the cylinders 34 35, they move together at the high speed of said cylinders; and as the supplement-web is thus advanced at a greater speed than the cylinders 30 40 feed. it forward, it is obvious that the increased speed it receives will cause its leading end to be detached on the line of its partial severance, and the sup plement-sheet thus formed will be carried outward by the tapes 36 37, with the main sheet, for delivery therewith. Meanwhile the supplement-web will be slowly advanced to cause its leading end or sheet to meet the leading end of the next incoming main sheet, with which it will be associated, as was the first.

It is obvious that the supplement-sheet, produced either by severing or partially severing the supplement-web, may be delivered to the main sheet by forwarding-rollers, independent of the cylinders 34 35, through tapes or other conductors leading therefrom, so as to deliver such supplementsheet at the proper time in aplane above or below that occupied by the main sheet, whereby the main and supplement sheets are brought into such on that they may be manipulated as a sin; duct and delivered simultaneously by a foldm g or piling mechanism.

Another modification of the invention is shown in Figs. 6 and 7. In this exemplification the main web is printed by a web-printing machine, the last-type and impression cylinders, 10 50, of which are alone shown, it being guided over a leading-roller, 51, directly to the delivering mechanism, consisting of delivering-cylinders 71 72, which are furnished with a peculiar folding mechanism, which is constructed as follows: The cylinder 71. is furnished with a serrated cutting-plate, 73, and holding-pins 74, while the cylinder 72 carries cutting-knives 75 76, that cooperate with said plate 73. The cylinder 71 also carries elastic lips 77 78, projecting over a recess, and the cutting-cylinder 72 carries el"stic lips 80 S2 and moving jaws 99 81.

The supplement-web is conducted between feedingcylinders 30 40, and guided in its course from the cylinder 30 to the cylinder 40 by tapes 52, stretched around the former and partially over the latter by a roller, 53, and between the cylinder 40 and cylinder 71 by conductors 54.

The main web is carried over the cylinder 71 until its leading end is impaled upon the pins 7 4, which will draw it forward and between the cylinders 71 72, and the leading end IIO 't'r' the lip 80, is nipped between the same and of the supplement-web is advanced until it may be entered over the lips 77 78 and under the central margin of the forward sheet of the main web. As the cylinders 71 72 revolve the main web will press upon the end of the supplement-web with suflicient force to nip the same and cause said supplement-web to move onward with and at I be same speed as the main web. As said cylinders 71 72 run slightly faster than the printing mechanism, so as to keep the main web taut, and twice as fast as the cylinders 30 40, they will detach a sheet from the supplement-web and carry said sheet onward with the main web, while the end of the supplement-web continues to be fed onward at one-half the speed at which the main' web runs. As the end of the main web is impaled on the pins 74 it will be carried onward by the cylinder 71, and just before its central portion is carried onto said cylinder the end of the supplement-web automatically arrives at that time underneath it. The rotative movement of the cylinders then carries the two webs onward together, detaching the supplement-sheet from its web, as before described, till the central portion of the sheet constituting the leading part of the main web passes between the cylinders 71 72, in which movement of it the following operations are effected: The elastic lips 77 80 seize and hold the sheet between them, as in Fig. 7, while the jaw 99 is moved in a direction contrary to the motion of cylinder 72 by means of its rock-arm 89 and cams 90, and, sweeping in contact with the sheet, wipes or draws the leading portion of the same rearward over the elastic lip 78, thus tearing it from the pins 74 and doubling or ering its central portion up in a loose al fold, which, projecting past the edge the edge of the moving jaw 99. Thus held the sheet is carried by its nipped doubled edge around with the cylinder 72 until it is severed from the web by the knife 75 and plate 73, as in Fig. 6, and the jaw 99 opens to release and deposit it in a once-folded condition.

It will be understood that the supplementsheet that has been detached and carried underneath the rearward part of the sheet constituting the leading end of the main web will be appropriately folded within said sheet.

The folding and cutting cylinders might be substituted for the cylinders 71 72, and their devices or the mechanism shown in Patent No. 188,779, granted March 27, 1877,

might be employed.

It will be observed that in the first-described machine the supplement-web is carried to a delivering mechanism in part constituted by the impression-cylinder of the printing-machine, while in the last-described machines said web is carried to a delivering mechanism entirely distinct from said printing-machine.

It is to be understood that in the last-described machine the cylinders 71 72 may, like the cylinders 34 35, be simple cylinders, operating to convey the associated sheets to an independent delivering mechanism; also, that the cylinder 34 may be the last impressioncylinder of the printing-machine, as is indicated by dotted lines in Fig. 5, in which case, however, the main web would pass between the type and impression cylinders, as first described, and the tapes 36 37 should deliver the sheets to accelerated tapes, which, in turn,

convey the associated sheets to an independent delivering mechanism.

The feeding-cylinders 30 40, as is apparent, must. move with a surface-speed appropriate to the relation of the size of the supplementsheet to that of the main sheet. Thus if the supplement is to be a full sheet they move with a like speed; ifa one-half sheet they must move at onehalf speed. These cylinders may therefore be made of the same size as the type-cylinders, and be set at a distance from the delivering mechanism suitable for the length of the main sheet, said cylinders being then provided with change-gearing suited to drive them at the speed required by the size of the supplement-sheet they are to feed forward. It will then be requisite that said cylinders be provided with two or more sets of cutters, one or more sets of which is movable; or auxiliary cutting-cylinders so provided might be used in connection therewith, as in United States Patent No. 191,494, granted May 29,1877. It will also be necessary to provide removable sheet-nipping rollers to seize the web at the proper point to insure the detachment of the forward sheet only, when from the dimensions of a half-sheet supplement two lines of division of the web will be between the points at which said web is nipped by the delivering mechanism and the cylinders 30 40, as is shown in United States Patent No.197,694, granted November 27, 1877.

A substitute for the indicating mechanism heretofore described is shown in Figs. 8 and 9. It consists of a rod, 44, provided at one end with a pointer, 45, and at the other pivoted to a rock-arm, 95, that swings upon the shaft of the cylinder 20, and is connected by a rod, 97, with a rock-arm, 46, so hung that it shall be engaged and slightly reciprocated in one direction by a pin, 47, projecting from the feeding-cylinder 30. The return movement of y the rods 97 and 44 is effected by a spiral spring, 94, fixed to the end of the roller 20 and to the rock-arm 95, and limited by a stoppin, 93.

The pointer 45 of the rod 44 rests on the top of the supplement-roll, and its actuatingpin 47 will be made adjustable in different positions in the head of the cylinder 30, so that when the supplement-web is being properly carried forward for association with the main web said pointer 45 shall, while overlying the margin or cutting-point of each sheets length of the web as the same is passing from off the supplement-roll, be slightly reciprocated by the action of said pin, and thus be caused to travel a short distance with the web. This operation of said pointer will readily indicate, according to its relation to the said margin or cutting-point of the web, the true relation or deviation therefrom of said web to its feedingcylinders or to its delivering mechanism. This indicating mechanism might be arranged in either of the apparatus herein illustrated, as is apparent.

Another modification of indicating mechanism is shown in Figs. .10 and 11, where an endless traveling be] t, 96, marked at the proper points, or there provided with pointers 92, to indicate the correct positions the margin or cutting-points of the supplementweb should occupy with respect to it, might be mounted so that it will travel with like surface-speed and parallel with or upon the said web be tween the supplement-roll and the indicatingcylinder 20, between the latter and the feeding-cylinder 80, or any part of the delivering mechanisms, and thus indicate at points within the vision of the operator the proper relation of the supplementweb with respect to the feeding-cylinders. As herein shown, this belt 96 is stretched from the cylinder 20 to a pulley, 101, hung near to the rolled supplementweb in an arm, 102, pivoted to the shaft of said cylinder 20, and carrying at its opposite end a roller, 103, bearing upon the roll of supplement, by which arrangement the said belt will always be kept in such a position that its registering portion will run in the same plane as the supplement-web.

A stationary leading-roller might be substituted for the pulley 101, over which the web would run, and consequently be always caused to travel in the same plane with the pointers on the belt 96.

Although, as hereinbefore described, it has been contemplated to make the supplement feeding cylinders also operate as the cutters, it is obvious that an independent set of cutting-cylinders may be provided and properly related to the mechanisms, so as to perforate and partially sever the supplement-web; and these might be employed so as to operate upon the web either before or after it passes over the indicating-cylinder 20.

It is also apparent that the supplementweb may be partially severed on the lines of its ultimate division while the same is being printed and rolled up. In the latter case no supplement cutting mechanism will be required in the machine.

Where the cutting of the web is performed in the machine it may be a complete severance, in which case proper tapes or other conducting devices will be supplied to insure the positive onward movement of the sheets.

It is, furthermore, obvious that the main web may be severed or partially severed after leaving the printing mechanism and before reaching the delivering mechanism. In the former case suitable conducting-tapes or other devices'for carrying the sheets forward will be supplied, and in both cases the delivering mechanism and the supplement mechanism leading thereto will be placed a sufficient dis tance away from the printing mechanism to permit the introduction of suitable cutters.

If the supplement be a whole sheet it may be delivered directly to the delivering-cylinders 7o 34 35 or 71 72, whereby it will be advanced at equal speed with the main web, and be cut and folded or otherwise manipulated regularly therewith. it will also be understood that the supplementfeeding cylinders may be so timed in their relation to the mechanism advancing the main web that the supplement-sheet may be associated with the main sheet, so as to occupy any desired position with respect thereto.

It is apparent that the supplement apparatus may be thrown outof action by sliding the wheel 65, carried by one of its feedingcylinders, out of gear with its driver 62, and the wheel 66 out of gear with the pinion 67, thus permitting the main machine to run independently to produce the main sheets without a supplement.

It will be understood that the pins 1, 2, or 74 may be automatically withdrawn by suitable mechanism, as is shown in the Patent No. 143,674, hereinbefore alluded to.

The sheets once folded by any of the mechanisms shown or described herein for that purpose may receive any number of subsequent folds by either vibrating folding-blades and coacting rollers or by means of any revolving folding apparatus.

What is claimed is- 1. The method of incorporating a supplement-sheet with the main sheet by first printing a supplement-web and winding itup in a roll, then unwinding the same and feeding it forward at a speed appropriate to that at which the main web is moved, and detaching sheets from the two webs, whereby the two sheets are associated so as to constitute a single product, all substantially as described.

2. The method ot'incorporatingasupplementsheet with a main sheet by first printing a supplement-web and winding it up in a roll, then unwinding the same and feeding it forward at a speed appropriate to that at which the main web is moved, detaching sheets from the two webs, associating them, and then folding the sheets together so as to constitute a single product, all substantially as described.

3. The method'of incorporating a supplement-sheet with a main sheet by first printing asupplement-web, partially severing it on the lines of its ultimate division into sheets, and winding it up into a roll, then unwinding the same and feeding it forward at a speed appropriate to that at which the main web is moved, disconnecting sheets from the supplement-web and associating them with sheets from the main web, and delivering the same as a single product, all substantially as described.

4. The combination, with a mechanism printing a main web and rotating cylinders for delivering the same, of a shaft supporting a roll of printed supplement-web, and revolving cylinders for feeding said supplement-web at an appropriate speed for association with the main web, whereby a supplement-web is carried to the main web while both are extended and running onward, all substantially as described.

5. The combination, with a mechanism printing a main web and rotating cylinders for delivering the same, of a shaft supporting a roll of printed supplement-web, revolving cylinders for feeding said supplement-web at an appropriate speed for association with the main web, and mechanism for severing said webs, whereby asupplemcnt-sheet is associated with a main sheet while both are extended and running onward, all substantially as described.

6. The combination of mechanism printing a main web, a printed supplement-web supporting and feeding mechanism, severing mechanism for separating said webs into sheets, and mechanism by which said sheets are associated so as to constitute a single signature, which may be acted upon by delivering mechanism as a single product, all substantially as described.

7. The combination, with a mechanism printing the main web and a shaft supporting the roll of printed. supplement-web, of the supplemeat-feeding cylinders and a rotating folding mechanism, all substantially as described.

8. The combination, with cylinders operating to feed sheets from a roll of supplementweb forward for association with sheets from the main web, of an indicator for determining the relation of the supplement-web with the main web, all substantially as described.

9. The combination, with the cylinders deliverin g the main web and a shaft supporting a roll of printed supplement-web, of the supplement-feedin g cylinders 30 40, provided with cutting devices, and which are driven at an appropriate speed relative to the movement of the main web, whereby the said supplementweb is divided through its margins, substantially as described.

1 0. The combination, with the printing mechanism perfecting a main web and a mechanism for feeding a printed supplement-web forward forassociation therewith, of a tension device for controlling the feed of said supplement web, whereby the printed portion of the supplement-sheets constituted by said web may be accurately associated with the printed portion of the main sheets, all substantially as described.

ll. A web-cutting mechanism consisting of a pair of cylinders provided with cutters the teeth of which mesh into and lap past each other, substantially as described.

12. The combination, with a printing mech' anism perfecting a main web, a shaft supportin g a printed supplement-web, and mechanism that advances the supplement-web for association with the main web, of an indicator travcling with the supplement-web, whereby the position of the printed portions of the two webs with relation to each other may be determined before said webs or sheets therefrom are brought together and such sheets accurately associated and delivered as one product, all substantially as described.

13. The combination, with supplement-feeding cylinders made of slightly greater circumferential extent than the length of the supplement-sheet they carry forward, of a supplement-web tension device, all substantially as described.

14. The combination, with the supplementfeeding cylinders, of the tapes 31 4.1, the lower set of which tapes move at a higher speed than said cylinders, whereby the said supplement is drawn smooth as it is delivered from them, substantially as described.

15. A sheet-folding mechanism consisting of two cylinders, one of which is provided with fixed elastic lips, as 7 7 7S, and the other with an elastic lip, as 80, and a movingjaw, as 99, by the conjoint operation of which the sheet is held near the folding-point, its leading portion drawn rearward and caused to gather at the folding-point, said gather is clamped by the jaw, and the sheet doubled, substantially'as described.

16. The supplement feed-roller, in vcombination with the delivering mechanism and drivin g-gearing arranged to rotate the supplement feed-roller at such speed as to feed forward one supplement-sheet to each whole or appro priate part revolution of the delivering mechanism, all substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LUTHER U. GROVVELL.

Witnesses:

11. T. MUNsoN, CHAS. W. CARPENTER. 

